SGS Thomson Microelectronics 74VCX16245TTR Datasheet
1/11July 2003
■ 3.6V TOLERANT INPUTS A N D OUTPUTS
■ HIGH SPEED:
t
PD
= 2.5 ns (MAX.) at VCC=3.0to3.6V
t
PD
= 3.2 ns (MAX.) at VCC=2.3to2.7V
t
PD
= 5.7 ns (MAX.) at VCC=1.8V
■ POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
■ SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
|=IOL= 24mA (MIN) at VCC=3.0V
|I
OH
|=IOL= 18mA (MIN) at VCC=2.3V
|I
OH
|=IOL=6mA(MIN)atVCC=1.8V
■ OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 1.8V to 3.6V
■ PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 16240
■ LATCH-UP PERFORMANCE EXCEEDS
300mA (JESD 17)
■ ESD PERFORMANCE:
HBM > 2 000V (MIL STD 883 method 3015);
MM > 200V
DESCRIPTION
The 74VCX16245 is a low voltage CMOS 16 BIT
BUS TRANSCEIVER (3-STATE) fabricated with
sub-micron silicon gate and five-layer metal wiring
C
2
MOS technology. It is ideal f or low power and
very high speed 1.8 to 3.6V applications; it can be
interfaced to 3.6V signal environment for both
inputs and outputs.
This IC is intended for two-way asynchronous
communication between data buses; the direction
of data transm ission is determined by DIR input.
The t wo enable inputs nG
canbeusedtodisable
the device so that the buses are effectively
isolated.
All inputs and outputs are equipped with
protection circuits against stat ic discharge, giving
them 2KV ESD immunity and transient excess
voltage.
All floating bus terminals during High Z State must
be held HIGH or LOW.
74VCX16245
LOW VOLTAGE CMOS 16-BIT BUS TRANSCEIVER
(3-STATE) WITH 3.6V TOLERANT INPUTS AND OUTPUTS
ORDER CODES
PACKAGE TUBE T & R
TSSOP 74VCX16245TTR
TSSOP
PIN CONNECTION
74VCX16245
2/11
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
TRUTH TABLE
X :Don‘t Care
Z : High Impedance
IEC L OGIC SYMBOLS
PIN No SYMBOL NAME AND FUNCTION
1 1DIR Directional Control
2, 3, 5, 6, 8, 9,
11, 12
1B1 to 1B8 Data Inputs/Outputs
13,14,16,17,
19, 20, 22, 23
2B1 to 2B8 Data Inputs/Outputs
24 2DIR Directional Control
25 2G
Output Enable Input
36,35,33,32,
30, 29, 27, 26
2A1 to 2A8 Data Inputs/Outputs
47,46,44,43,
41, 40, 38, 38
1A1 to 1A8 Data Inputs/Outputs
48 1G
Output Enable Input
4, 10, 15, 21,
28, 34, 39, 45
GND Ground (0V)
7, 18, 31, 42
V
CC
Positive Supply Voltage
INPUTS FUNCTION OUTPUT
G
DIR A BUS B BUS Yn
L L OUTPUT INPUT A = B
L H INPUT OUTPUT B = A
HXZZZ
74VCX16245
3/11
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
1) I
O
absolute maximum rating must be observed
2) V
O
<GND,VO>V
CC
RECOMMENDED OPERATING CONDITIONS
1) VINfrom0.8V to 2V at VCC=3.0V
Symbol Parameter Value Unit
V
CC
Supply Voltage
-0.5 to +4.6 V
V
I
DC Input Voltage
-0.5 to +4.6 V
V
O
DC Output Voltage (OFF State)
-0.5 to +4.6 V
V
O
DC Output Voltage (High or Low State) (note 1) -0.5 to VCC+ 0.5
V
I
IK
DC Input Diode Current
-50 mA
I
OK
DC Output Diode Current (note 2)
-50 mA
I
O
DC Output Current
± 50 mA
I
CC
or I
GND
DC VCCor Ground Current per Supply Pin
± 100 mA
P
D
Power Dissipation
400 mW
T
stg
Storage Temperature
-65 to +150 °C
T
L
Lead Temperature (10 sec)
300 °C
Symbol Parameter Value Unit
V
CC
Supply Voltage
1.8 to 3.6 V
V
I
Input Voltage
-0.3 to 3.6 V
V
O
Output Voltage (OFF State)
0 to 3.6 V
V
O
Output Voltage (High or Low State) 0 to V
CC
V
I
OH,IOL
High or Low Level Output Current (VCC= 3.0 to 3.6V)
± 24 mA
I
OH,IOL
High or Low Level Output Current (VCC= 2.3 to 2.7V)
± 18 mA
I
OH,IOL
High or Low Level Output Current (VCC= 1.8V)
± 6mA
T
op
Operating Temperature
-55 to 125 °C
dt/dv Input Rise and Fall Time (note 1) 0 to 10 ns/V
74VCX16245
4/11
DC SPECIFICATIONS (2.7V < VCC< 3.6V unless otherwise specified)
Symbol Parameter
Test Condition Value
Unit
V
CC
(V)
-40to85°C -55to125°C
Min. Max. Min. Max.
V
IH
High Level Input
Voltage
2.7to3.6
2.0 2.0
V
V
IL
Low Level Input
Voltage
0.8 0.8
V
OH
High Level Output
Voltage
2.7to3.6
IO=-100 µAVCC-0.2 VCC-0.2
V
2.7
I
O
=-12 mA
2.2 2.2
3.0
I
O
=-18 mA
2.4 2.4
I
O
=-24 mA
2.2 2.2
V
OL
Low Level Output
Voltage
2.7to3.6
IO=100 µA
0.2 0.2
V
2.7
I
O
=12 mA
0.4 0.4
3.0
I
O
=18 mA
0.4 0.4
I
O
=24 mA
0.55 0.55
I
I
Input Leakage
Current
2.7to3.6
V
I
= 0 to 3.6V
± 5 ± 5 µA
I
off
Power Off Leakage
Current
0
V
I
or VO= 0 to 3.6V
10 10 µA
I
OZ
High Impedance
Output Leakage
Current
2.7to3.6
V
I=VIH
or V
IL
VO= 0 to 3.6V
± 10 ± 10 µA
I
CC
Quiescent Supply
Current
2.7to3.6
VI=VCCor GND
20 20
µA
V
I
or VO=VCCto
3.6V
± 20 ± 20
∆I
CC
ICCincr. per Input
2.7to3.6
VIH=VCC-0.6V
750 750 µA
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